Hello, I have some questions dealing with an interactive diagram. to access the diagram go here: http://www.colorado.edu/physics/phet/simulations/lens/lens.swf(adsbygoogle = window.adsbygoogle || []).push({});

when you go there set the radius of curvature to 1.0 m, the refractive index to 1.6, and the diameter to 1.2 m

Ok first question:1. Calculate the focal length of the lens. So I know I need to use the lens maker's equation. 1/f = (n-1) (1/R1 - 1/R2)

Plugging in numbers is the answer: .83 cm?

2. Calculate the distance you need between the lens and the arrow so that its image is the same size as the object. What are your calculated values of p and q?

What equation do I use to calculate this distance?

Please help, muchas gracias.

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# Lense/Image help (interactive diagram fun!)

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